Revamp the settings system (#7)

- A Settings Provider system to utilize addressables for loading settings at runtime
- An editor UI for easy modifications of the settings objects
- A split out developer settings functionality to keep gameplay and nitty-gritty details separately
- Most settings migrated out of game objects and into the new system
- An additional Editor utility for fetching the settings at editor runtime, for gizmos, visualization etc

Co-authored-by: Michal Pikulski <michal.a.pikulski@gmail.com>
Co-authored-by: AlexanderT <alexander@foolhardyhorizons.com>
Reviewed-on: #7

Assets/Editor/EditorSettingsProvider.cs

@@ -0,0 +1,97 @@
+using UnityEditor;
+using AppleHills.Core.Settings;
+using UnityEngine;
+
+namespace AppleHills.Editor
+{
+    /// <summary>
+    /// Provides access to settings in editor (non-play) mode
+    /// </summary>
+    [InitializeOnLoad]
+    public static class EditorSettingsProvider
+    {
+        private static PlayerFollowerSettings _playerFollowerSettings;
+        private static InteractionSettings _interactionSettings;
+        private static DivingMinigameSettings _divingMinigameSettings;
+        
+        // Static constructor will be called when Unity loads/reloads scripts
+        static EditorSettingsProvider()
+        {
+            LoadAllSettings();
+            
+            // Set up the delegates in SettingsAccess
+            AppleHills.SettingsAccess.SetupEditorProviders(
+                GetPlayerStopDistance,
+                GetPlayerStopDistanceDirectInteraction
+            );
+            
+            // Subscribe to asset changes to auto-refresh when settings are modified
+            EditorApplication.delayCall += () =>
+            {
+                EditorApplication.projectChanged += OnProjectChanged;
+            };
+        }
+        
+        private static void OnProjectChanged()
+        {
+            // Check if any settings assets have changed
+            if (HasSettingsChanged())
+            {
+                LoadAllSettings();
+                RefreshSceneViews();
+            }
+        }
+        
+        private static bool HasSettingsChanged()
+        {
+            // Simplified check - you might want to make this more efficient
+            // by checking timestamps or specific files
+            return true;
+        }
+        
+        public static void LoadAllSettings()
+        {
+            _playerFollowerSettings = AssetDatabase.LoadAssetAtPath<PlayerFollowerSettings>("Assets/Settings/PlayerFollowerSettings.asset");
+            _interactionSettings = AssetDatabase.LoadAssetAtPath<InteractionSettings>("Assets/Settings/InteractionSettings.asset");
+            _divingMinigameSettings = AssetDatabase.LoadAssetAtPath<DivingMinigameSettings>("Assets/Settings/MinigameSettings.asset");
+            
+            // Re-register the delegates in case they were lost
+            AppleHills.SettingsAccess.SetupEditorProviders(
+                GetPlayerStopDistance,
+                GetPlayerStopDistanceDirectInteraction
+            );
+            
+            Debug.Log("Editor settings loaded for Scene View use");
+        }
+        
+        public static void RefreshSceneViews()
+        {
+            // Force scene views to repaint to refresh gizmos
+            SceneView.RepaintAll();
+        }
+        
+        // Implementation of delegate methods
+        private static float GetPlayerStopDistance()
+        {
+            return _interactionSettings?.PlayerStopDistance ?? 6.0f;
+        }
+        
+        private static float GetPlayerStopDistanceDirectInteraction()
+        {
+            return _interactionSettings?.PlayerStopDistanceDirectInteraction ?? 2.0f;
+        }
+        
+        // Other utility methods
+        public static T GetSettings<T>() where T : BaseSettings
+        {
+            if (typeof(T) == typeof(PlayerFollowerSettings))
+                return _playerFollowerSettings as T;
+            else if (typeof(T) == typeof(InteractionSettings))
+                return _interactionSettings as T;
+            else if (typeof(T) == typeof(DivingMinigameSettings))
+                return _divingMinigameSettings as T;
+                
+            return null;
+        }
+    }
+}